INGREDIENTS
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1 white cake mix
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4 egg whites
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1 1/4 cups water
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1/3 cup oil
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2 cups heavy cream
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1 teaspoon vanilla
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8 oz cream cheese, softened
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1 cup marshmallow cream
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1 cup powdered sugar
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(2) 16 oz packages strawberries, divided
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24 oz package blueberries, divided